Don't remove ruby on osx arm (needed for osx 15 ci change)

Author: mcbarton

.github/workflows/ci.yml

@@ -345,10 +345,11 @@ jobs:
       if: ${{ runner.os == 'macOS' && steps.cache.outputs.cache-hit != 'true' }}
       run: |
         brew update
-        brew remove [email protected]
         export ARCHITECHURE=$(uname -m)
         if [[ "$ARCHITECHURE" != "x86_64" ]]; then
           brew remove unxip
+        else
+          brew remove [email protected]
         fi
         # workaround for https://github.com/actions/setup-python/issues/577
         for pkg in $(brew list | grep '^python@'); do
@@ -813,9 +814,9 @@ jobs:
       if: runner.os == 'macOS'
       run: |
         brew update --force 
-        brew remove [email protected]
         export ARCHITECHURE=$(uname -m)
         if [[ "$ARCHITECHURE" == "x86_64" ]]; then
+          brew remove [email protected]
           brew remove swiftlint
         else
           brew remove unxip